MySQL BIT_LENGTH() function
BIT_LENGTH() function
MySQL BIT_LENGTH() returns the length of the given string in bits.
Syntax:
BIT_LENGTH (str1)
Argument:
Name | Description |
---|---|
str1 | A string whose BIT_LENGTH value is to be retrieved. |
Syntax Diagram:

MySQL Version: 5.6
Video Presentation:
Example: MySQL BIT_LENGTH() function
The following MySQL statement will return the length of the given string 'my text' in bits, i.e. 56.
Code:
SELECT BIT_LENGTH('my text');
Sample Output:
mysql> SELECT BIT_LENGTH('my text'); +-----------------------+ | BIT_LENGTH('my text') | +-----------------------+ | 56 | +-----------------------+ 1 row in set (0.02 sec)
Example of MySQL BIT_LENGTH() function using table
The following MySQL statement will return the length of each city mentioned in pub_city column in bits.
Code:
SELECT pub_city,
BIT_LENGTH(pub_city) AS 'bit length'
FROM publisher;
Sample table: publisher
Sample Output:
mysql> SELECT pub_city, -> BIT_LENGTH(pub_city) AS 'bit length' -> FROM publisher; +-----------+------------+ | pub_city | bit length | +-----------+------------+ | New York | 64 | | Mumbai | 48 | | Adelaide | 64 | | London | 48 | | Houstan | 56 | | New York | 64 | | Cambridge | 72 | | New Delhi | 72 | +-----------+------------+ 8 rows in set (0.02 sec)
PHP script:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>example-bit_length-function - php MySQL examples | w3resource</title>
<meta name="description" content="example-bit_length-function - php MySQL examples | w3resource">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-12">
<h2>List of publisher's city and its bit length: </h2>
<table class='table table-bordered'>
<tr>
<th>Publisher's city</th><th>Bit length</th>
</tr>
<?php
$hostname="your_hostname";
$username="your_username";
$password="your_password";
$db = "your_dbname";
$dbh = new PDO("MySQL:host=$hostname;dbname=$db", $username, $password);
foreach($dbh->query('SELECT pub_city,BIT_LENGTH(pub_city)
AS "bit length"
FROM publisher') as $row) {
echo "<tr>";
echo "<td>" . $row['pub_city'] . "</td>";
echo "<td>" . $row['bit length'] . "</td>";
echo "</tr>";
}
?>
</tbody></table>
</div>
</div>
</div>
</body>
</html>
JSP script:
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>example-bit_length-function</title>
</head>
<body>
<%
try {
Class.forName("com.MySQL.jdbc.Driver").newInstance();
String Host = "jdbc:MySQL://localhost:3306/w3resour_bookinfo";
Connection connection = null;
Statement statement = null;
ResultSet rs = null;
connection = DriverManager.getConnection(Host, "root", "datasoft123");
statement = connection.createStatement();
String Data = "SELECT pub_city,BIT_LENGTH(pub_city) AS 'bit length' FROM publisher";
rs = statement.executeQuery(Data);
%>
<TABLE border="1">
<tr width="10" bgcolor="#9979">
<td>Publisher's city</td>
<td>Bit length</td>
</tr>
<%
while (rs.next()) {
%>
<TR>
<TD><%=rs.getString("pub_city")%></TD>
<TD><%=rs.getString("bit length")%></TD>
</TR>
</TR>
<% } %>
</table>
<%
rs.close();
statement.close();
connection.close();
} catch (Exception ex) {
out.println("Can’t connect to database.");
}
%>
</body>
</html>
Online Practice Editor:
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